package utils;

import com.google.zxing.BarcodeFormat;
import com.google.zxing.WriterException;
import com.google.zxing.client.j2se.MatrixToImageWriter;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.qrcode.QRCodeWriter;

import java.io.IOException;
import java.nio.file.FileSystems;
import java.nio.file.Path;


/**
 *
 * @author zjf
 * @Desc 生成二维码
 */
public class QRCodeGenerator {


    /**
     * 生成二维码方法
     * @param text 内容
     * @param width 宽
     * @param height 高
     * @param filePath 存放路径
     * @throws WriterException
     * @throws IOException
     */
    public static void generateQRCodeImage(String text, int width, int height, String filePath)
            throws WriterException, IOException {
        QRCodeWriter qrCodeWriter = new QRCodeWriter();
        BitMatrix bitMatrix = qrCodeWriter.encode(text, BarcodeFormat.QR_CODE, width, height);
        Path path = FileSystems.getDefault().getPath(filePath);
        MatrixToImageWriter.writeToPath(bitMatrix, "PNG", path);
    }


    public static void main(String[] args) {
        try {
            generateQRCodeImage("Hello World111", 350, 350, "QRTest.png");
        } catch (WriterException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }



}
